Locomotive driving box



E. DUCHESNE ocomorxvr: muvnw 503:

Original Filed. July 7. 1922 Sept. 29, 1925,.

S E a E N h H W Patented Sept. 29, 1925.

ERNEST DUCHESNE, OF SGHENECTADY, NEW YORK.

LOCOMOTIVE DRIVING BOX.

Original application filed July 27, 1922, Serial No. 577,788. Dividedand this application filed January To all whom it may concern:

Be it known that I, ERNEST DUCI-IESNE, of Schenectady, in the county ofSchenectady and State of New York, have invented a certain new anduseful Improvement in Locomotive Driving Boxes, of which improvement thefollowing is a specification.

The object of my invention is to provide improved means for lubricatingthe journal of an axle, which rotates in a locomotive driving; box, byefl'ecting the automatic supply of lubricating material thereto, duringthe operation of the locomotive on which such driving box is applied.

The improvement claimed is hereinafter fully set forth.

In the accompanying drawing: Figure 1 is a vertical longitudinal sectionthrough a locomotive driving box and the adjoining wheel hub,illustrating an embodiment of my invention, the section of the upperportion of the box being taken in its middle longitudinal plane, andthat of the lower portion on the plane of the line a a: of Fig. 2; Fig.2, a view, the right hand half of which is a rear elevation of thedriving box, and the left hand half a transverse section through thesame, on the line b b of Fig. 1; Fig. 3, a view, half in plan and halfin longitudinal horizontal section, of the journal brasses; Fig. 4, arear end view, in elevation, of the same; and, Fig. 5, a side view,partly in section.

In the practice of my invention, referring descriptively to the specificembodiment thereof which is herein exemplified, the body, 5, of thedriving box, is substantially in U form, closed at top by a. saddleblock, 6, and has atapered bore for the reception of two counterpartjournal brass sections, 7, 7, which abutl in the middle longitudinalplane of the driving box, and when in position therein, entirelysurround the journal, 2, of the driving axle, 2, which rotates therein.The complete detailed construction of the journal brasses and theirrelation to the body of the driving box, are fully set forth in myco-pending application, filed July 27, 1922, Serial No. 577,788, ofwhich this application is a division, and they are not therefore claimedherein.

section journal bearing,

Serial- No. 5,760.

In order to enable automatic lubrication of the journal brasses, whilein service, to be conveniently and effectively performed, one or morelubricant cellars, 5, is or are formed upon, or fixed to, the bottom ofthe body, 5, of the driving box, said cellars being downwardly inclinedtherefrom, and projecting from the inner side thereof. In the preferredconstruction shown in the drawing, two lubricant cellars, located inopposite sides of. the middle longitudinal plane of the driving box, areapplied, thereby ensuring free access of the lubricant to each of thejournal brass sections. Each of the lubricant cellars is in opencommunication with a chamber or cavity, 5, in the body of the drivingbox, said chambers registering with orifices, 7 in the journal brasses,through which the lubricant passes to the inner sides thereof.

The lubricant is forced from the cellars, 5, to the journal brasses, bysprings, 11, bearing on pistons, 10, fitting in the cellars, the outerends of which] are closed by removable heads or covers, 13, by theremoval of which the cellars may be supplied with lubricant, as fromtime to time required. The quantity of lubricant remaining in thecellars, and the requirement of replenishment thereof, are determined bythe position of indicating rods, 12, fixed to the pistons, 10, andprojecting outwardly from the cellars, through the heads, 13, thereof.

My invention provides means for automatically lubricating the journalbearings of alocomotive driving axle, which are simple, effective,readily accessible, and which do not involve any substantial increase ofweight or cost, or interference with adjacent members of the structureof the locomotive.

I- claim as my invention and desire to secure by Letters Patent:

1. In a locomotive driving box, the combination of a body, having.lubricant receiving chambers on opposite sides of its middlelongitudinal plane, adjoining its bottom; a two fitted in the body, eachsection having its inner side open to one of the chambers; two lubricantcellars,

each projecting downwardly and towards bers; and spring actuatedpistons, fitted in said lubricant. cellars.

2. A locomotive driving box having two lubricant chambers in its lowerportion, one

5 on each side of the median vertical plane,

bearingbrasses in said box, each provided with an orifice adjoining thecorrespondin'g,

chamber, two lubricant cellars extending downwardly from the box, eachcommunicating with: one of said chambers, and means to 10 forcelubricant; from said cellars into said chambers.

ERNEST DUCHESNE.

